Also,on BikeBandit.com the Tbird listing shows two different wheel-hub assemblies and the pictures of the cush drive rubber appear different(picture or drawing layout?)
On BikeBandit.com the T Bird listing shows two different wheel-hub assemblies with two part numbers and the pictures of the cush drive rubber appear different as well.
7:
RUBBER,CUSH DRIVE 5557395-001
$76.86
For serial #29155 and below
REAR WHEEL / FINAL DRIVE (SERIAL NUMBER 29156 AND HIGHER
Serial REAR WHEEL / FINAL DRIVE (SERIAL NUMBER 29156 AND HIGHER

7:
RUBBER,CUSH DRIVE 5567927-001
$76.86
For serial # 29156 and higher

The stock cush drive rubber on my Speedmaster is molded all in one piece (but 5 sets of rubber blocks attached at edges with only minimal linkage from one block to the next.
Just info


If your ship doesn't come in - swim out to it ! Nothing but Triumph -'05 Speedmaster - Ride with the NorCal Presidents